Boiler-cleaner.



PTENTED OCT. 9, 1906.

C. F. TUCKER.

BOILER CLEANER.

APIPLIOATION FILED DB0. '1. 1905.

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CALVIN F. TUCKER, OF CARTERVILLE, MISSOURI.

BOILER-CLEANEFI.

. Specification of Letters Patent.

Patented Oct. 9, 1906.

Application filed December 7,1905. Serial No. 290,839. y

.To a/Z'L whom it may concern:

Be it known that I, CALVIN `F. TUCKER, a citizen of the United States, residing at Carterville, in the county of Jasper and State of Missouri, have invented a new and useful Boiler-Cleaner, of which the following is a speciiication.

This invention relates to boiler-cleaners, and has for its object to provide improved means for removing mud, slime, and other sedimentary deposits from the interior of the boiler, so asA to prevent danger of incrustation, and thereby materially add to the life of the boiler.

A further obj ect of the invention is to provide a guard or shield mounted for vertical movement within the boiler and movable to operative and inoperative position through the medium of suitable hand-operated devices.

A still further object is to form a guard or shield having an opening in one end thereof to permit the passage of steam and water between the shield and the bottom of the boiler when the blow-orf cock is opened and the shield adjusted to operable position.

With-these and other objects in view the invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto ap ended, it being understoodv that various c anges in form, proportions, and minor details of construction may be resorted to without departing from the principle or sacriiicing any of the advantages of this invention.

In the accompanying drawings, forming a part of this specification, Figure 1 is a longitudinal sectional view of a boiler, showing a boiler-cleaner constructed in accordance with my invention applied thereto. Fig. 2 is a transverse sectional view taken on the line 2 2 of Fig. 1.

The device is shown by way of illustration applied to an ordinary hre-tube boiler, in which 5 designates the boiler, 6` the boilerheads, and 7 the longitudinal iiues connected 4in any suitable manner to the heads, as

shown.

The cleaner consists of a substantially rectangular guard or shield 8, oi approximately the same length as the boiler and having its longitudinal edges or side walls inclined or iiared outwardly, as indicated at 9, and its end walls 10 and 11 curved to conform to the vshape of the bottom of the boiler, so that when the cleaner is adjusted to operative position the side and end walls of the shield will engage the bottom of the boiler-and form a chamber or compartment 12.

The free edge of the wall 10 is formed with a segmental recess 13, through which the steam and water enter the chamber 12 when the cock 14 of the blow-off pipe or discharge 15 is opened, the latter being preferably located at a point adjacent the end wall 11. The guard or shield is suspended within the boiler by means of threaded rods 16, one end of each of which is secured to the top of thel shield by clamping-nuts 17 and 18, while the opposite ends of the rods pass through suitable glands or bushings 19, threaded at 20 in the top wall of the boiler, and are provided with terminal operating handles 21, by means of which the shield may be conveniently raised and lowered.

The glands 19 are provided with a suitable packing 22 to prevent the escape of steam from the boiler and are also provided with threaded caps 23, which engage correspondinfr threads on the glands, as shown.

lUnder normal conditions the shield is supported in the elevated position shown by dotted lines in Fig. 2. When it is desired to clean the boiler, the shield is lowered by turning the handles 21 until the shield rests upon the bottom of the boiler, after which the cock 14 is opened, thus permitting slime, mud, and other sedimentary deposits on the bottom of the boiler to be discharged through the pipe 15. After the cleaning operation is completed the shield is again elevated by turning the operating-handles in the reverse direction.

From the foregoing description it will be seen that there is provided an extremely simple and inexpensive device admirably adapted for the attainments of the ends in view.

Having thus described the invention, what is claimed is- 1. The combination with a boiler having a discharge-pipe, of a guard or shield mounted for vertical movement within the boiler and adjustable to operable position on the bottom of the latter.

2. The combination with a boiler having a discharge-pipe, of a guard or shield extending longitudinally ofthe boiler and mounted for vertical movement within the same, and means for adjusting the shield to operative IOO IIO

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position in contact With the bottom oi said boiler. l

3. The combination With a boiler having a discharge-pipe, of a guard or shield mounted for vertical movement Within the boiler and having an openingk in one end thereof, and means for adjusting the shield to operative position in contact With the bottom of said boiler.

4. The combination with a boiler provided With a discharge-pipe, of a guard or shield extending longitudinally of the boiler and comprising a plate provided with depending side Walls and having end Walls curved to conform to the bottom of the boiler, there being an opening formed in one of the end Walls7 and means for adjusting the shield vertically to operative and inoperative position Within the boiler.

5. The combination with a boiler provided With a discharge-pipe, of a guard or shield extending longitudinally of the boiler and movable to operative position in contact With the bottom of the latter, and threaded rods secured to the shield and extending through ,the Walls of the boiler, said rods being provided With operating-handles for adjusting the shield vertically to operative and inoperative positions.

6. The combination With a boiler provided With a discharge-pipe, of a shield or guard mounted Jfor vertical movement Within the boiler and adjustable to operative position on the bottom of the latter, bushings thread- -ed in the Walls of the boileri threaded rods passing through said bushings and having their opposite ends connected to the shield, nuts carried by the rods and bearing against the adjacent Walls of the shield, and operating-handles for rotating the rods to adjust the shield to operative and inoperative positions.

CALVIN F. TUCKER.

Witnesses:

N. R. HICKS, B. F. CHRoNrsTEn.

In testimony that I claim the foregoing as 

